# Error while installing FreeFEM++ 4.12 in debian 11 **URL:** \ **Category:** FreeFEM installation\ **Created:** [May 6, 2023, 9:32am UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446 "2023-05-06T09:32:37Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![pakk1412](https://avatars.discourse-cdn.com/v4/letter/p/ecccb3/32.png) [@pakk1412](https://community.freefem.org/u/pakk1412)\ **Post date:** [May 6, 2023, 9:32am UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/1 "2023-05-06T09:32:37Z")
Hello, I get 4 failed tests in my debian 11 machine in the end and it exits with an error message: FAIL: LaplaceRT-3d.edp FAIL: periodic3.edp FAIL: LapDG3d.edp FAIL: Elasticity-simple-support-BC.edp Can somebody give me some leads on how to fix this? I don’t get the same errors on a mint machine though. It passes all tests. Thank you! ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [May 6, 2023, 4:29pm UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/2 "2023-05-06T16:29:32Z")
Could you try with the `develop` branch maybe? ---
**Author:** ![frederichecht](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/frederichecht/32/15_2.png) [@frederichecht](https://community.freefem.org/u/frederichecht)\ **Post date:** [May 8, 2023, 8:28am UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/3 "2023-05-08T08:28:16Z")
you can also see and sendto us the edp.log ---
**Author:** ![pakk1412](https://avatars.discourse-cdn.com/v4/letter/p/ecccb3/32.png) [@pakk1412](https://community.freefem.org/u/pakk1412)\ **Post date:** [May 8, 2023, 12:16pm UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/4 "2023-05-08T12:16:58Z")
I tried, but it did not help. Thanks! ---
**Author:** ![pakk1412](https://avatars.discourse-cdn.com/v4/letter/p/ecccb3/32.png) [@pakk1412](https://community.freefem.org/u/pakk1412)\ **Post date:** [May 8, 2023, 12:19pm UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/5 "2023-05-08T12:19:54Z")
Hi, I’m not able to upload any documents and the last time I gave the link of the edp file, my post got flagged and then removed. What should I do? Thanks! ---
**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\ **Post date:** [May 8, 2023, 2:38pm UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/6 "2023-05-08T14:38:12Z")
You should now be able to upload files. ---
**Author:** ![pakk1412](https://avatars.discourse-cdn.com/v4/letter/p/ecccb3/32.png) [@pakk1412](https://community.freefem.org/u/pakk1412)\ **Post date:** [May 8, 2023, 4:30pm UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/8 "2023-05-08T16:30:13Z")
Thanks! These are the edp.log of the four failed examples. [LapDG3d.edp.log](https://community.freefem.org/uploads/short-url/wlxJbZUs34C5ySQL0ygFGIQVZ4m.log) (3.0 KB) [Elasticity-simple-support-BC.edp.log](https://community.freefem.org/uploads/short-url/mGV2k6jzQQ3Q9ULYHUvxurWJPVD.log) (3.4 KB) [LaplaceRT-3d.edp.log](https://community.freefem.org/uploads/short-url/iSALGhawTLlKVRCIt0PahYBpg1y.log) (10.4 KB) [periodic3.edp.log](https://community.freefem.org/uploads/short-url/beJdDwqIzidAi3ChAp5hNDUrDkC.log) (8.6 KB) ---
**Author:** ![frederichecht](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/frederichecht/32/15_2.png) [@frederichecht](https://community.freefem.org/u/frederichecht)\ **Post date:** [May 8, 2023, 5:34pm UTC](https://community.freefem.org/t/error-while-installing-freefem-4-12-in-debian-11/2446/9 "2023-05-08T17:34:44Z")
I never see this error, I think, your installation is no standard, your bias or the sparse lib is bad ! Sorry, I can not say why!.